Pam Grant and STAR* Ferrets <[log in to unmask]> wrote: >[From: [log in to unmask] (Fara Shimbo)] >Ferrets can distinguish only red and see the rest as shades of grey. How was this found out? Which species of polecats were investigated? -- Urban Fredriksson [log in to unmask] [log in to unmask] http://www.kuai.se/%7Egriffon/ Ferrets; Aircraft; Railways [Posted in FML issue 1448]